256611992

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{352489}}^1$

素因数の和:352515

約数の個数: 32

約数和(自身を含む): 592183200

約数和(自身を除く): 335571208

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 352489, 704978, 1409956, 2467423, 2819912, 4582357, 4934846, 9164714, 9869692, 18329428, 19739384, 32076499, 36658856, 64152998, 128305996, 256611992]

約数ペア:

[(1, 256611992), (2, 128305996), (4, 64152998), (7, 36658856), (8, 32076499), (13, 19739384), (14, 18329428), (26, 9869692), (28, 9164714), (52, 4934846), (56, 4582357), (91, 2819912), (104, 2467423), (182, 1409956), (364, 704978), (728, 352489)]